AIPS HELP file for CALIN in 31DEC21
As of Thu Jun 24 19:23:35 2021
Type: Adverb (String*48)
Use: To specify the name of a disk file outside the usual AIPS
catalog system to be used as input for an AIPS verb or task.
The file is usually calibration information.
Format: The name is usually given by specifying a logical device plus
directory, followed by a colon, followed by the actual file
name. In Unix, logicals are environment variables. The
logical name must be set up before entering the AIPS program
and is usually in upper case. Thus, for example:
percent setenv MYAREA ~joeuser
for the C shell, and
$ myarea=$HOME; export MYAREA
for bourne, korn, and bash shells. Then in AIPS,
CALIN = 'MYAREA:FITS.DAT'
Note that the Unix-standard $ ahead of the logical is omitted.
AIPS-standard logicals like FITS (often AIPS/FITS) are available
also. Other forms are now acceptable as well:
CALIN = 'FITS.DAT
will find the file in the $FITS directory (when reading or
writing FITS disk files) or in the directory local when you
started AIPS. A full path name may also be given
CALIN = '/home/primate2/egreisen/AIPS/N6503.fits
if it fits in 48 characters. Note that the trailing quote mark
is left off and this is the last command on the input line so
that the case is preserved.
Under UNIX, it is now possible to read and write tape files with
other, cooperating computers. If the other computer is running
the AIPS "deamon" task TPMON, then INFILE may also take the form
where is the name of the other computer, and is
a name known to TPMON on that computer. This limitation
probably requires you to use the $FITS or $RUNFIL or other
widely known AIPS areas. (For real tape, the node name is given
in the MOUNT command instead.) This option only applies to tapes
Null value: ' '
Taken to mean no subsidiary file. This can be an error.
For tapes, it means use a real tape drive given by INTAPE
(which must already be MOUNTed).
ANCAL........Places antenna-based Tsys and gain corrections in CL
table; CALIN contains Tsys and gain curve data
ANTAB........Read amplitude calibration information into AIPS;
CALIN contains VLBA amplitude correction data
APCAL........Apply TY and GC tables to generate an SN table; CALIN
contains the weather data
BPCOR........Correct BP table; CALIN contains a list of correction
CLVLB........Corrects CL table gains for pointing offsets in VLBI
data. CALIN gives the parameters of the antenna beams.
DFCOR........Applies user-selected corrections to the calibration
CL table; CALIN contains atmospheric delay data.
FILLM........Reads VLA on-line/archive format uv data tapes; CALIN
is the VLA antenna gains table
INDXR........Writes index file describing contents of UV data
base; CALIN is the VLA antenna gains file
PCLOD........Reads ascii file containing pulse-cal info to PC
table.; CALIN contains the pulse-cal data
PRTSY........Task to print statistics from the SY table.
CALIN provides a table of antenna efficiencies.
QUFIX........Determines Right minus Left phase difference,
corrects cal files. CALIN optionally provides
the correction angles.
RLDIF........Determines Right minus Left phase difference,
corrects cal files. CALIN lists the cal source
Q and U by frequency.
SYSOL........Undoes and re-does nominal sensitivity application
for Solar data. CALIN provides antenna efficiencies
as a function of frequency and polarization.
TYAPL........Undoes and re-does nominal sensitivity application.
CALI provides antenna efficiencies as a function
of frequency and polarization.
VLOG.........Pre-process external VLBA calibration files; CALIN is
the TSM calibration file